Achillea plant named ‘Bosachskyye’

ABSTRACT

A new and distinct cultivar of Achillea plant named ‘Bosachskyye’, characterized by its upright and uniform plant habit; vigorous growth habit; freely branching habit; freely flowering habit; inflorescences with bright yellow-colored ray florets; and good garden performance.

Botanical designation: Achillea millefolium.

Cultivar denomination: ‘BOSACHSKYYE’.

STATEMENT REGARDING PRIOR DISCLOSURES BY INVENTOR/APPLICANT

An European Community Plant Breeder's Rights application for the instant plant was filed by the Inventor/Applicant on Feb. 7, 2022, application number 2022/0401. Foreign priority is not claimed to this application.

The Inventor/Applicant assert that no publications nor advertisements relating to sales, offers for sale or public distribution occurred more than one year prior to the effective filing date of this application. Any information about the claimed plant would have been obtained from a direct or indirect disclosure from the Inventor/Applicant. Inventor/Applicant claim a prior art exception under 35 U.S.C. 102(b)(1) for disclosure and/or sales prior to the filing date but less than one year prior to the effective filing date.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Achillea plant, botanically known as Achillea millefolium, commonly referred to as Yarrow, and hereinafter referred to by the name ‘Bosachskyye’.

The new Achillea plant is a product of a planned breeding program conducted by the Inventor in Nieuw-Vennep and Zwaanshoek, The Netherlands. The objective of the breeding program is to create new vigorous Achillea plants with uniform plant habit and large inflorescences with attractive flowers.

The new Achillea plant originated from a cross-pollination in Nieuw-Vennep, The Netherlands in July, 2015 of Achillea millefolium ‘Desyel’, disclosed in U.S. Plant Pat. No. 22,369, as the female, or seed, parent with Achillea millefolium ‘Surprising Cherry’, not patented, as the male, or pollen, parent. The new Achillea plant was discovered and selected by the Inventor as a single flowering plant from within the progeny of the stated cross-pollination in a controlled greenhouse environment in Zwaanshoek, The Netherlands in July, 2016.

Asexual reproduction of the new Achillea plant by vegetative tip cuttings in a controlled environment in Zwaanshoek, The Netherlands since July, 2016, has shown that the unique features of this new Achillea plant are stable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

Plants of the new Achillea have not been observed under all possible combinations of environmental conditions and cultural practices. The phenotype may vary somewhat with variations in environmental conditions such as temperature and light intensity, without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘Bosachskyye’. These characteristics in combination distinguish ‘Bosachskyye’ as a new and distinct Achillea plant:

-   -   1. Upright and uniform plant habit.     -   2. Vigorous growth habit.     -   3. Freely branching habit.     -   4. Freely flowering habit.     -   5. Inflorescences with bright yellow-colored ray florets.     -   6. Good garden performance.

Plants of the new Achillea differ from plants of the female parent, ‘Desyel’, in plant size as plants of the new Achillea are medium in size whereas plants of ‘Desyel’ are short and compact.

Plants of the new Achillea differ from plants of the male parent, ‘Surprising Cherry’, in ray floret color as plants of the new Achillea have bright yellow-colored ray florets whereas plants of ‘Surprising Cherry’ have purplish red-colored red florets.

Plants of the new Achillea can also be compared to plants of Achillea millefolium ‘Desert Eve Cream’, not patented. In side-by-side comparisons, plants of the new Achillea differ primarily from plants of ‘Desert Eve Cream’ in ray floret color as plants of the new Achillea have bright yellow-colored ray florets whereas plants of ‘Desert Eve Cream’ have cream-colored-colored ray florets. In addition, plants of the new Achillea are larger than and not as compact as plants of ‘Desert Eve Cream’.

BRIEF DESCRIPTION OF THE PHOTOGRAPH

The accompanying photograph illustrates the overall appearance of the new Achillea plant showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photograph may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Achillea plant. The photograph is a top perspective view of a typical flowering plant of ‘Bosachskyye’ grown in a container.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photograph and following observations and measurements describe plants grown during the late summer in 17-cm containers in an outdoor nursery in Aalsmeer, The Netherlands and under cultural practices typical of commercial Achillea production. During the production of the plants, average daily temperatures were 22° C. and average night temperatures were 17° C. Plants were 15 weeks old when the photograph and description were taken. In the following description, color references are made to The Royal Horticultural Society Colour Chart, Second Edition, except where general terms of ordinary dictionary significance are used.

-   Botanical classification: Achillea millefolium ‘Bosachskyye’. -   Parentage:     -   -   Female, or seed, parent.—Achillea millefolium ‘Desyel’,             disclosed in U.S. Plant Pat. No. 22,369.         -   Male, or pollen, parent.—Achillea millefolium ‘Surprising             Cherry’, not patented. -   Propagation:     -   -   Type.—Terminal vegetative cuttings.         -   Time to initiate roots, summer.—About 16 days at             temperatures about 26° C.         -   Time to initiate roots, winter.—About three weeks at             temperatures about 23° C.         -   Time to produce a rooted cutting, summer.—About 24 days at             temperatures about 23° C.         -   Time to produce a rooted cutting, winter.—About four weeks             at temperatures about 18° C.         -   Root description.—Medium in thickness, fibrous; typically             white to light yellow in color, actual color of the roots is             dependent on substrate composition, water quality,             fertilizer type and formulation, substrate temperature and             physiological age of roots.         -   Rooting habit.—Moderately freely branching habit; medium             density. -   Plant description:     -   -   Plant and growth habit.—Perennial plant appropriate as a             container or garden plant; upright and uniform plant habit;             vigorous growth habit; rapid growth rate; freely basal             branching habit with about 24 basal branches developing per             plant.         -   Plant height.—About 51 cm.         -   Plant diameter or spread.—About 45 cm.         -   Lateral branches.—Length: About 46 cm. Diameter: About 4 mm.             Internode length: About 4.5 cm. Aspect: Upright to about 30°             from vertical. Strength: Strong. Texture and luster:             Pubescent; glossy. Color, developing and developed: Close to             144A. -   Leaf description:     -   -   Arrangement.—Alternate, simple; sessile.         -   Length.—About 1.5 cm.         -   Width.—About 1 cm.         -   Shape.—Overall, oblong; feathery and fern-like.         -   Apex.—Acute.         -   Base.—Truncate.         -   Margin.—Deeply and finely dissected, pinnatisect; lobes             divergent.         -   Texture and luster, upper and lower surfaces.—Pubescent;             glossy.         -   Venation pattern.—Pinnate.         -   Color.—Developing leaves, upper surface: Close to 137A.             Developing leaves, lower surface: Close to 138A. Fully             expanded leaves, upper surface: Close to 137A; venation,             close to 148D. Fully expanded leaves, lower surface: Close             to 138A; venation, close to 148D. -   Inflorescence description:     -   -   Arrangement and habit.—Rotate composite inflorescence form;             inflorescences arranged in terminal or axillary compound             corymbs; corymbs are slightly rounded; freely flowering             habit with about 222 inflorescences per terminal corymb and             about 5,328 inflorescences per plant; corymbs positioned             above the foliar plane and face mostly upright.         -   Fragrance.—Faint; pleasant.         -   Time to flower.—Plants flower during June and July in The             Netherlands; inflorescences not persistent.         -   Inflorescence buds.—Height: About 5 mm. Diameter: About             2 mm. Shape: Ovoid. Texture and luster: Smooth, glabrous;             glossy. Color: Close to 144A.         -   Corymb diameter.—About 8 cm.         -   Corymb height.—About 5 cm.         -   Inflorescence diameter.—About 7 mm.         -   Inflorescence height.—About 6 mm.         -   Disc diameter.—About 4 mm.         -   Receptacle diameter.—About 1 mm.         -   Receptacle height.—About 1 mm.         -   Receptacle shape.—Rounded, button-shaped.         -   Receptacle color.—Close to 143A.         -   Ray florets.—Quantity and arrangement: About five in a             single whorl; ray florets face outwardly. Length: About             2 mm. Width: About 4 mm. Shape: Obovate. Apex: Emarginate.             Base: Cordate. Margin: Mostly entire, distally, crenate;             slightly undulate. Texture and luster, upper and lower             surfaces: Smooth, glabrous; matte. Color: When opening,             upper surface: Close to 42B; towards the base, close to 12A.             When opening, lower surface: Close to 12D. Fully opened,             upper surface: Close to 12A; at the apex, occasionally             tinged with close to 42D; venation, close to 12A; color does             not change with subsequent development. Fully opened, lower             surface: Close to 12C; venation, close to 12C; color does             not change with subsequent development.         -   Disc florets.—Quantity and arrangement: About 22 massed at             the center of the receptacle. Length: About 5 mm. Diameter:             About 1 mm. Shape: Tubular; apex, five-pointed. Texture and             luster; upper and lower surfaces: Smooth, glabrous; matte.             Color, when developing, upper and lower surfaces: Close to             9A. Color, fully developed, upper and lower surfaces: Close             to 9A; color does not change with subsequent development.         -   Phyllaries.—Quantity and arrangement: About 14 arranged in             about three whorls; imbricate and tightly appressed to the             ray florets. Length: About 4 mm. Width: About 2 mm. Shape:             Elliptic. Apex: Acute. Base: Cuneate. Margin: Entire.             Texture and luster, upper and lower surfaces: Pubescent;             glossy. Color, upper and lower surfaces: Close to 144A.         -   Peduncles.—Length, terminal peduncle: About 3 mm. Diameter,             terminal peduncle: About 2 mm. Length, third peduncle: About             2 mm. Diameter, third peduncle: About 2 mm. Strength:             Moderately strong. Aspect, terminal peduncle: Erect. Aspect,             third peduncle: About 50° from vertical. Texture and luster:             Pubescent; semi-glossy. Color: Close to 144A.         -   Pedicels.—Length: About 2 mm. Diameter: About 1 mm.             Strength: Flexible. Aspect: About 45° from vertical. Texture             and luster: Pubescent; semi-glossy. Color: Close to 144A.         -   Reproductive organs.—Androecium (present on disc florets             only): Quantity: About five. Filament length: About 1 mm.             Filament color: Close to 144A. Anther shape: Narrowly             oblong; basifixed. Anther size: About 0.1 mm by 1 mm. Anther             color: Close to 13A. Pollen amount: Abundant. Pollen color:             Close to 13A. Gynoecium (present on disc and ray florets):             Quantity: One. Pistil length: About 5 mm. Stigma diameter:             About 1 mm. Stigma shape: Bi-parted. Stigma color: Close to             144A. Style length: About 4 mm. Style color: Close to 144B.             Ovary color: Close to 145D.         -   Seeds and fruits.—To date, seed and fruit production has not             been observed on plants of the new Achillea. -   Pathogen & pest resistance: To date, plants of the new Achillea have     not been shown to be resistant to pathogens and pests common to     Achillea plants. -   Garden performance: Plants of the new Achillea have been observed to     have good garden performance and tolerate wind, rain and to tolerate     temperatures ranging from about −37° C. to about 35° C. and to be     suitable for U.S.D.A. Hardiness Zone 3 and higher. 

It is claimed:
 1. A new and distinct Achillea plant named ‘Bosachskyye’ as illustrated and described. 